CM1411-03CP

Overview

The CM1411-03CP is a dual-channel EMI filter circuit manufactured by onsemi, designed for audio applications. It integrates two pi-style RC filters to reduce electromagnetic interference while providing electrostatic discharge protection. The device features a cutoff frequency of 53 MHz and operates within a temperature range of -40°C to +85°C. Key electrical parameters include a capacitance of 47 pF, resistance of 100 Ohms, and an attenuation of 20 dB. It is housed in a CSP-11 surface-mount package with dimensions of 2.05 mm length, 1.44 mm width, and 0.72 mm height.

Feature Summary

• Integrates dual pi-style RC filters for effective EMI/RFI emission reduction
• Provides integrated electrostatic discharge (ESD) protection for connected lines
• OptiGuard coating enhances reliability during assembly processes

Applications

• EMI filtering for 8-ohm speakers
• Audio filter circuits requiring combined noise suppression and protection
• Headset line protection interfaces

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm the specific suffix CP indicates the correct packaging format required for your manufacturing process. Check current lifecycle status as availability may vary. Ensure compliance with RoHS directives relevant to your target market before finalizing procurement orders.

Selection Notes

Select this component when designing audio paths that require simultaneous signal integrity preservation and transient protection. The dual-channel architecture suits stereo speaker or headset connections. Evaluate the 53 MHz cutoff frequency against your system's noise spectrum to ensure adequate attenuation without affecting desired audio bandwidths.

Part Context

This part belongs to the CM1410 series of EMI filter arrays from onsemi. These components are engineered to address increasing electromagnetic compatibility challenges in compact consumer electronics. The series utilizes proprietary OptiGuard technology to improve robustness during surface mount assembly, ensuring consistent performance in high-volume production environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications if considering alternative manufacturers. Consult official onsemi resources for updated replacement recommendations.